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Created by brivas@brecinosrivasMaintainer

json file for deck 721

I have inspected the output of the imma1_d721.json data model and there are a few things that I can't figure out from the ICOADS documentation for the German Maury logbooks:

  1. The Present weather column in the docs has a complex keying system that I don't understand how to translate that information into a code_table/.json. The present weather column already has an indicator which is easy to key.

See imma1_d721.json#L2584-2589 here is the output of the data set below with the current .json

data.data[["c99_data"]].c99_data.weather.dropna()

6          D
7         BC
10         B
12        BC
16         B
17         D
27        BC
32        DR
38        ZW
40        BC
50         C
51         ~
  1. The following symbol ~ appears a lot on the data. Comes with the original imma file. According to the documentation:

If the code is given in other than English, try to interpret it. If the direction given is not interpretable by these rules, key a “~“ in the first position.

Should the mdf_reader be able to handle that as NaN or should I leave it like that.

Edited by brivas